S: (n) operation (the activity of operating something (a machine or business etc.)) "her smooth operation of the vehicle gave us a surprisingly comfortable ride"

S: (n) operation (a planned activity involving many people performing various actions) "they organized a rescue operation"; "the biggest police operation in French history"; "running a restaurant is quite an operation"; "consolidate the companies various operations"

S: (n) diversion, recreation (an activity that diverts or amuses or stimulates) "scuba diving is provided as a diversion for tourists"; "for recreation he wrote poetry and solved crossword puzzles"; "drug abuse is often regarded as a form of recreation"

S: (n) cup of tea, bag, dish (an activity that you like or at which you are superior) "chemistry is not my cup of tea"; "his bag now is learning to play golf"; "marriage was scarcely his dish"

S: (n) follow-up, followup (an activity that continues something that has already begun or that repeats something that has already been done)

S: (n) game (a contest with rules to determine a winner) "you need four people to play this game"

S: (n) turn, play ((game) the activity of doing something in an agreed succession) "it is my turn"; "it is still my play"

S: (n) music (musical activity (singing or whistling etc.)) "his music was his central interest"

S: (n) waste, wastefulness, dissipation (useless or profitless activity; using or expending or consuming thoughtlessly or carelessly) "if the effort brings no compensating gain it is a waste"; "mindless dissipation of natural resources"

S: (n) attempt, effort, endeavor, endeavour, try (earnest and conscientious activity intended to do or accomplish something) "made an effort to cover all the reading material"; "wished him luck in his endeavor"; "she gave it a good try"

S: (n) control (the activity of managing or exerting control over something) "the control of the mob by the police was admirable"

S: (n) procedure, process (a particular course of action intended to achieve a result) "the procedure of obtaining a driver's license"; "it was a process of trial and error"

S: (n) ceremony (any activity that is performed in an especially solemn elaborate or formal way) "the ceremony of smelling the cork and tasting the wine"; "he makes a ceremony of addressing his golf ball"; "he disposed of it without ceremony"

S: (n) laughter (the activity of laughing; the manifestation of joy or mirth or scorn) "he enjoyed the laughter of the crowd"

S: (n) market, marketplace, market place (the world of commercial activity where goods and services are bought and sold) "without competition there would be no market"; "they were driven from the marketplace"

S: (n) politics (the activities and affairs involved in managing a state or a government) "unemployment dominated the politics of the inter-war years"; "government agencies multiplied beyond the control of representative politics"

S: (n) preparation, readying (the activity of putting or setting in order in advance of some act or purpose) "preparations for the ceremony had begun"

S: (n) aid, assist, assistance, help (the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose) "he gave me an assist with the housework"; "could not walk without assistance"; "rescue party went to their aid"; "offered his help in unloading"

S: (n) support (the activity of providing for or maintaining by supplying with money or necessities) "his support kept the family together"; "they gave him emotional support during difficult times"

S: (n) perturbation, disturbance (activity that is a malfunction, intrusion, or interruption) "the term `distress' connotes some degree of perturbation and emotional upset"; "he looked around for the source of the disturbance"; "there was a disturbance of neural function"